Schwinn authorized dealers. The Schwinn Airdyne Exercise Bike was the first patent trainer to give you a total body workout. to simulate a whole-body ergometer with a patented dual action motion that synchronizes movement of arms and legs, your natural movement of the Schwinn Airdyne bike has a patented fan wheel wind resistance increases exponentially, the harder you pedal. Air resistance, a good step motion allowed by blowing cooling air flow control Schwinn Airdyne Bike create a comfortable workout for home or rehabilitation. Shown in charcoal original dual action air resistance exercise bike. The Schwinn Airdyne Exercise Bike was the first patent trainer to give you a total body workout. to simulate a whole-body ergometer with a patented dual action motion that synchronizes movement of arms and legs, your natural movement of the Schwinn Airdyne bike has a patented fan wheel wind resistance increases exponentially, the harder you pedal. Air resistance, a good step motion allowed by blowing cooling air flow control Schwinn Airdyne Bike create a comfortable workout for home or rehabilitation.